# In ΔABC right angled at B, AB = 24 cm, BC = 7 m. Determine sin C, cos C - Mathematics

In ΔABC right angled at B, AB = 24 cm, BC = 7 m. Determine sin C, cos C

#### Solution

Applying Pythagoras theorem for ΔABC, we obtain

AC2 = AB2 + BC2

= (24 cm)2 + (7 cm)2

= (576 + 49) cm2

= 625 cm2

∴ AC =sqrt(625) cm = 25 cm

sin C =(

cos C =(

Concept: Trigonometric Ratios
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#### APPEARS IN

NCERT Class 10 Maths
Chapter 8 Introduction to Trigonometry
Exercise 8.1 | Q 1.2 | Page 181